Show that u . S # Q v S + w S R = u S # v S + u S # w S
Chapter 8, Problem 73(choose chapter or problem)
Show that u . S # Q v S + w S R = u S # v S + u S # w S
Unfortunately, we don't have that question answered yet. But you can get it answered in just 5 hours by Logging in or Becoming a subscriber.
Becoming a subscriber
Or look for another answer